Q7. Jablonski diagram from photophysical data

A series of photophysical measurements are carried out on an aqueous solution of compound X. The fluorescence quantum yield is 0.6, the fluorescence lifetime is 20 ns and the intersystem crossing (S₁ to T₁) quantum yield is 0.4. The phosphorescence quantum yield is 0.1 and the phosphorescence lifetime is 1 s. No photochemical decomposition occurs. Draw a Jablonski energy level diagram showing S₀, S₁ and T₁ for X and, using this information, indicate all the radiative and non-radiative processes operating between these states following absorption of light.